281 lines
9.7 KiB
C
281 lines
9.7 KiB
C
/*
|
|
* Copyright 2005-2007 James Bursa <bursa@users.sourceforge.net>
|
|
* Copyright 2003 Philip Pemberton <philpem@users.sourceforge.net>
|
|
*
|
|
* This file is part of NetSurf, http://www.netsurf-browser.org/
|
|
*
|
|
* NetSurf is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; version 2 of the License.
|
|
*
|
|
* NetSurf is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/** \file
|
|
* Content handling (interface).
|
|
*
|
|
* The content functions manipulate struct contents, which correspond to URLs.
|
|
*/
|
|
|
|
#ifndef _NETSURF_CONTENT_CONTENT_H_
|
|
#define _NETSURF_CONTENT_CONTENT_H_
|
|
|
|
#include <stdbool.h>
|
|
#include <stdio.h>
|
|
|
|
#include <libwapcaplet/libwapcaplet.h>
|
|
|
|
#include "utils/config.h"
|
|
#include "utils/errors.h"
|
|
#include "utils/http.h"
|
|
#include "utils/nsurl.h"
|
|
#include "utils/types.h"
|
|
#include "content/content_factory.h"
|
|
#include "content/content_type.h"
|
|
#include "desktop/mouse.h"
|
|
#include "desktop/plot_style.h"
|
|
|
|
struct browser_window;
|
|
struct content;
|
|
struct llcache_handle;
|
|
struct hlcache_handle;
|
|
struct object_params;
|
|
struct rect;
|
|
struct redraw_context;
|
|
|
|
|
|
/** Status of a content */
|
|
typedef enum {
|
|
CONTENT_STATUS_LOADING, /**< Content is being fetched or
|
|
converted and is not safe to display. */
|
|
CONTENT_STATUS_READY, /**< Some parts of content still being
|
|
loaded, but can be displayed. */
|
|
CONTENT_STATUS_DONE, /**< All finished. */
|
|
CONTENT_STATUS_ERROR /**< Error occurred, content will be
|
|
destroyed imminently. */
|
|
} content_status;
|
|
|
|
/** Used in callbacks to indicate what has occurred. */
|
|
typedef enum {
|
|
CONTENT_MSG_LOADING, /**< fetching or converting */
|
|
CONTENT_MSG_READY, /**< may be displayed */
|
|
CONTENT_MSG_DONE, /**< finished */
|
|
CONTENT_MSG_ERROR, /**< error occurred */
|
|
CONTENT_MSG_ERRORCODE, /**< error occurred return nserror */
|
|
CONTENT_MSG_STATUS, /**< new status string */
|
|
CONTENT_MSG_REFORMAT, /**< content_reformat done */
|
|
CONTENT_MSG_REDRAW, /**< needs redraw (eg. new animation frame) */
|
|
CONTENT_MSG_REFRESH, /**< wants refresh */
|
|
CONTENT_MSG_DOWNLOAD, /**< download, not for display */
|
|
CONTENT_MSG_LINK, /**< RFC5988 link */
|
|
CONTENT_MSG_GETCTX, /**< Javascript context */
|
|
CONTENT_MSG_SCROLL, /**< Request to scroll content */
|
|
CONTENT_MSG_DRAGSAVE, /**< Allow drag saving of content */
|
|
CONTENT_MSG_SAVELINK, /**< Allow URL to be saved */
|
|
CONTENT_MSG_POINTER, /**< Wants a specific mouse pointer set */
|
|
CONTENT_MSG_SELECTION, /**< A selection made or cleared */
|
|
CONTENT_MSG_CARET, /**< Caret movement / hiding */
|
|
CONTENT_MSG_DRAG /**< A drag started or ended */
|
|
} content_msg;
|
|
|
|
/** RFC5988 metadata link */
|
|
struct content_rfc5988_link {
|
|
struct content_rfc5988_link *next; /**< next rfc5988_link in list */
|
|
|
|
lwc_string *rel; /**< the link relationship - must be present */
|
|
nsurl *href; /**< the link href - must be present */
|
|
lwc_string *hreflang;
|
|
lwc_string *type;
|
|
lwc_string *media;
|
|
lwc_string *sizes;
|
|
};
|
|
|
|
/** Extra data for some content_msg messages. */
|
|
union content_msg_data {
|
|
/** CONTENT_MSG_ERROR - Error message */
|
|
const char *error;
|
|
/** CONTENT_MSG_ERRORCODE - Error code */
|
|
nserror errorcode;
|
|
/** CONTENT_MSG_REDRAW - Area of content which needs redrawing */
|
|
struct {
|
|
int x, y, width, height;
|
|
/** Redraw the area fully. If false, object must be set,
|
|
* and only the object will be redrawn. */
|
|
bool full_redraw;
|
|
/** Object to redraw if full_redraw is false. */
|
|
struct content *object;
|
|
/** Coordinates to plot object at. */
|
|
int object_x, object_y;
|
|
/** Dimensions to plot object with. */
|
|
int object_width, object_height;
|
|
} redraw;
|
|
/** CONTENT_MSG_REFRESH - Minimum delay */
|
|
int delay;
|
|
/** CONTENT_MSG_REFORMAT - Reformat should not cause a redraw */
|
|
bool background;
|
|
/** CONTENT_MSG_STATUS - Status message update. If NULL, the content's
|
|
* internal status text has been updated, and listener should use
|
|
* content_get_status_message() */
|
|
const char *explicit_status_text;
|
|
/** CONTENT_MSG_DOWNLOAD - Low-level cache handle */
|
|
struct llcache_handle *download;
|
|
/** CONTENT_MSG_RFC5988_LINK - rfc5988 link data */
|
|
struct content_rfc5988_link *rfc5988_link;
|
|
/** CONTENT_MSG_GETCTX - Javascript context */
|
|
struct jscontext **jscontext;
|
|
/** CONTENT_MSG_SCROLL - Part of content to scroll to show */
|
|
struct {
|
|
/** if true, scroll to show area given by (x0, y0) and (x1,y1).
|
|
* if false, scroll point (x0, y0) to top left of viewport */
|
|
bool area;
|
|
int x0, y0;
|
|
int x1, y1;
|
|
} scroll;
|
|
/** CONTENT_MSG_DRAGSAVE - Drag save a content */
|
|
struct {
|
|
enum {
|
|
CONTENT_SAVE_ORIG,
|
|
CONTENT_SAVE_NATIVE,
|
|
CONTENT_SAVE_COMPLETE,
|
|
CONTENT_SAVE_SOURCE
|
|
} type;
|
|
/** if NULL, save the content generating the message */
|
|
struct hlcache_handle *content;
|
|
} dragsave;
|
|
/** CONTENT_MSG_SAVELINK - Save a URL */
|
|
struct {
|
|
const char *url;
|
|
const char *title;
|
|
} savelink;
|
|
/** CONTENT_MSG_POINTER - Mouse pointer to set */
|
|
browser_pointer_shape pointer;
|
|
/** CONTENT_MSG_SELECTION - Selection made or cleared */
|
|
struct {
|
|
bool selection; /**< false for selection cleared */
|
|
bool read_only;
|
|
} selection;
|
|
/** CONTENT_MSG_CARET - set caret position or, hide caret */
|
|
struct {
|
|
enum {
|
|
CONTENT_CARET_SET_POS,
|
|
CONTENT_CARET_HIDE,
|
|
CONTENT_CARET_REMOVE
|
|
} type;
|
|
struct {
|
|
int x; /**< Carret x-coord */
|
|
int y; /**< Carret y-coord */
|
|
int height; /**< Carret height */
|
|
const struct rect *clip; /**< Carret clip rect */
|
|
} pos; /**< With CONTENT_CARET_SET_POS */
|
|
} caret;
|
|
/** CONTENT_MSG_DRAG - Drag start or end */
|
|
struct {
|
|
enum {
|
|
CONTENT_DRAG_NONE,
|
|
CONTENT_DRAG_SCROLL,
|
|
CONTENT_DRAG_SELECTION
|
|
} type;
|
|
const struct rect *rect;
|
|
} drag;
|
|
};
|
|
|
|
/** parameters to content redraw */
|
|
struct content_redraw_data {
|
|
int x; /**< coordinate for top-left of redraw */
|
|
int y; /**< coordinate for top-left of redraw */
|
|
|
|
/** dimensions to render content at
|
|
* (for scaling contents with intrinsic dimensions) */
|
|
int width; /**< horizontal dimension */
|
|
int height; /**< vertical dimension */
|
|
|
|
/** The background colour */
|
|
colour background_colour;
|
|
|
|
/** Scale for redraw
|
|
* (for scaling contents without intrinsic dimensions) */
|
|
float scale; /**< Scale factor for redraw */
|
|
|
|
bool repeat_x; /**< whether content is tiled in x direction */
|
|
bool repeat_y; /**< whether content is tiled in y direction */
|
|
};
|
|
|
|
/* The following are for hlcache */
|
|
void content_destroy(struct content *c);
|
|
|
|
bool content_add_user(struct content *h,
|
|
void (*callback)(struct content *c, content_msg msg,
|
|
union content_msg_data data, void *pw),
|
|
void *pw);
|
|
void content_remove_user(struct content *c,
|
|
void (*callback)(struct content *c, content_msg msg,
|
|
union content_msg_data data, void *pw),
|
|
void *pw);
|
|
|
|
uint32_t content_count_users(struct content *c);
|
|
bool content_matches_quirks(struct content *c, bool quirks);
|
|
bool content_is_shareable(struct content *c);
|
|
content_status content__get_status(struct content *c);
|
|
|
|
const struct llcache_handle *content_get_llcache_handle(struct content *c);
|
|
nsurl *content_get_url(struct content *c);
|
|
|
|
struct content *content_clone(struct content *c);
|
|
|
|
nserror content_abort(struct content *c);
|
|
|
|
/* Client functions */
|
|
bool content_can_reformat(struct hlcache_handle *h);
|
|
void content_reformat(struct hlcache_handle *h, bool background,
|
|
int width, int height);
|
|
void content_request_redraw(struct hlcache_handle *h,
|
|
int x, int y, int width, int height);
|
|
void content_mouse_track(struct hlcache_handle *h, struct browser_window *bw,
|
|
browser_mouse_state mouse, int x, int y);
|
|
void content_mouse_action(struct hlcache_handle *h, struct browser_window *bw,
|
|
browser_mouse_state mouse, int x, int y);
|
|
bool content_keypress(struct hlcache_handle *h, uint32_t key);
|
|
bool content_redraw(struct hlcache_handle *h, struct content_redraw_data *data,
|
|
const struct rect *clip, const struct redraw_context *ctx);
|
|
void content_open(struct hlcache_handle *h, struct browser_window *bw,
|
|
struct content *page, struct object_params *params);
|
|
void content_close(struct hlcache_handle *h);
|
|
void content_clear_selection(struct hlcache_handle *h);
|
|
char * content_get_selection(struct hlcache_handle *h);
|
|
void content_get_contextual_content(struct hlcache_handle *h,
|
|
int x, int y, struct contextual_content *data);
|
|
bool content_scroll_at_point(struct hlcache_handle *h,
|
|
int x, int y, int scrx, int scry);
|
|
bool content_drop_file_at_point(struct hlcache_handle *h,
|
|
int x, int y, char *file);
|
|
void content_debug_dump(struct hlcache_handle *h, FILE *f);
|
|
struct content_rfc5988_link *content_find_rfc5988_link(struct hlcache_handle *c,
|
|
lwc_string *rel);
|
|
|
|
/* Member accessors */
|
|
content_type content_get_type(struct hlcache_handle *c);
|
|
lwc_string *content_get_mime_type(struct hlcache_handle *c);
|
|
const char *content_get_title(struct hlcache_handle *c);
|
|
content_status content_get_status(struct hlcache_handle *c);
|
|
const char *content_get_status_message(struct hlcache_handle *c);
|
|
int content_get_width(struct hlcache_handle *c);
|
|
int content_get_height(struct hlcache_handle *c);
|
|
int content_get_available_width(struct hlcache_handle *c);
|
|
const char *content_get_source_data(struct hlcache_handle *c,
|
|
unsigned long *size);
|
|
void content_invalidate_reuse_data(struct hlcache_handle *c);
|
|
nsurl *content_get_refresh_url(struct hlcache_handle *c);
|
|
struct bitmap *content_get_bitmap(struct hlcache_handle *c);
|
|
bool content_get_opaque(struct hlcache_handle *h);
|
|
bool content_get_quirks(struct hlcache_handle *c);
|
|
|
|
bool content_is_locked(struct hlcache_handle *h);
|
|
|
|
#endif
|